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- Title
木质复合门结构优化仿真分析研究.
- Authors
乔雅煊; 李贤军; 吕建雄; 王海东; 郝晓峰
- Abstract
One of the primary issues with the production and use of wood-based composite doors is deformation. Based on the moisture expansion coefficients of LVL and MDF in this study, the moisture absorption and deformation patterns of seven wood-based composite door schemes were analyzed in conjunction with finite element numerical simulation, and the mechanism of the deformations was investigated to get an optimal scheme. According to the results, the moisture expansion coefficient of 22 mm MDF was 1.1 times greater than that of 5.7 mm. The moisture expansion coefficient of LVL was unaffected by thickness, but the moisture expansion coefficients along the grain, across the grain, and in the thickness direction were noticeably different in LVL of the same thickness. The area of the door leaf frame structure's unfixed side stile was where the deformation was primarily concentrated. The deformation of the entire door frame structure could be successfully suppressed by optimizing the assembly combination method. The deformation of the door leaf first decreased and then increased as the surface panel and frame thickness increased. The 25 mm wide unit strip showed less deformation than the 40 mm wide unit strip. The best of the frame assembly solution was obtained when the thickness of the surface panel was 3 mm, the thickness of the frame was 28 mm and the width of one side was 75 mm. This study provides a new idea for structural optimization of wood-based composite door.
- Subjects
STRUCTURAL optimization; STRUCTURAL frames; MEDIUM density fiberboard; DEFORMATIONS (Mechanics); LEAF area
- Publication
China Forest Products Industry, 2023, Vol 60, Issue 7, p34
- ISSN
1001-5299
- Publication type
Article
- DOI
10.19531/j.issn1001-5299.202307006